Hand-operated car-brake.



J. A. NOBLE.

HAND OPERATED CAR BRAKE.

APPLICATION FILED SEPI. I7. 1914.

Patented 0015.112, 1915.

I I I..| I Il /M/ v l 0 f I/vI/E/vron Arron/vn y. hm v- WMM? COLUMBIAPLANDURAPM co..W^sHIN''oN. D. t.

JAMES A. NoBLE, 0E NEW YORK, N. Y., AssieNoB. To E. L. NOBLE, orBROOKLYN,

NEW YORK.

HAND-OPERATED CAR-BRAKE.

Application led September 17, 1914. Serial N o. 862,133. y f

To all 'whom t may Concern:

Be itknown that I, JAMES ARTHUR NOBLE, a citizen of the United States,and resident of the borough of Brooklyn, county of .Kings, city andkState of New York, have invented certain new and useful Improvements inHand-Operated Car-Brakes, of which the following is al-specification.

For economyand for ease and rapidity of operation the present tendencyis toward a type of brakeigenerallyl termed a staftless my presentinvention, and although in the construction of my device I have usedcertain parts well known and well understood,

'I arrange them in a manner to obtain in a most eflicient way all theadvantages that may be derived from a staiess brake.

The particular construction and method of operation of my device will befully set forth as this specification progresses.

The following is what I consider the best means of carrying out thisinvention, and the accompanying drawingsv form a part of thisspecification, in which:

Figure 1. is a frontelevation. Fig. 2. a side elevation partly insection.

Similar reference numerals indicate like parts in all the figures wherethey appear.

At 1 I have shown a casing or column which may be formed of cast-iron orother suitable material which is provided with a detachable cap 2 and abase l. The'cap,

column and base are hollow and it is within these parts that theoperative portion of my mechanism is arranged.

-Formed in the column and cap, and ar-V ranged about one half in each ofthese members are a plurality of bearings 3 and 4 and arranged in thesebearings is a shaft 5 which may be rotated therein or it may be securedwithin the bearings. I arrange a compound sheave having a large portion6 and a smaller portion 7 secured together or formed integral. Bothparts of this sheave are supplied with a groove, and a sucient groovearranged on an incline connects the two grooves of the parts 6 and 7.lAcross the grooves 6 Iarrange a pin 8 to which the brake chain will besecured and a rotation ofthe sheave will cause the Vchain to be taleiior to be wound/into thegrooves 6 an g T o rotatethe,compoundv sheave-Iprovide Van internal gear 9 secured to the sheave or cast integraltherewith, and within this gear 9 I arrange a. pinion 10 in mesh withthe gear and supported: uponaf rotatableV shaft 11 Specification ofLettersPatent.`4 Pallted 006.12, 1915. v

which is in turn mounted in a broad bearing 12 which projects from thecap 2. A handwheel 13 is secured upon the shaft 11 eX- terior to the cap2 and serves as a means whereby thepinion 10 and gear'9 may be rotatedfor the purpose of imparting motion to the. compound sheave. Exterior tothe gear 9 I arrange av ratchet 14, this ratchet mayalso becast integralwith the gear 9 and the compound sheave, and I provide a dog 15 pivotedat 16 into the column 1 for checking the motion of the ratchet 14 andthe parts rotatable therewith. A bar 20 eX- tends downward through thecolumn 1 and has its upper end .secured tothe dog 15. rIhe lower end ofthe rod 2O is pivotally engaged with the foot pedal 17.

It will be noted that the enlarged portion 15 of the dog 15 tends tohold the dog out of engagement with the ratchet' 14. Engagement of thedog with the ratchet is accomplished either by the depression of thefoot lever 17 or by means which will now be described. i

n is desirable in an han brakes that uw.V

chain shall not unwind to a greatextent and to prevent this I secure asecond chain 18 to the operating end of the dog 15, 4the other end ofthe chain 1S is secured to the brake operating chain and I take care toprovide lonly a sufficient length of chain 18 that will allow the brakechain to run out to a suicient length to free the brake. A furthermovement of the brake chain will cause the dog 15 to Vengage the ratchetwhich will prevent further unwinding of the brake chain.

It will be noted that I provide a compound sheave or rather one having aspiral chain groove, the4 larger end of the groove will take up theslack quickly, and the smaller end will eXert a power upon the brakechain. From this construction I provide not only a rapidly operatingbrake but one that will be found to contain a means for operatinge'ectively and with sufficient force. e

Modifications may be made within the scope of the appended claimswithout d'eparting from the principle or sacrificingA the advantages ofthis invention.

Having carefully and fully described my invention, what I' claim anddesire to secure by Letters Patent is:

' l. A brake having an internal and eX- ter-nal-gear andt a sheave, achainoper-'able therewith, aratchet and dog operable with saidl gears,andmeans for operating said dogsby the motion ofsaidl chain, asandforthe-purposel set forth.

2. A hand operated car brake provided with aflexible member, a sheavehaving a spiral; groove, means for .rotatingA said sheave, a ratchetformed integral with said G opies,othis; patent :may1bepobtainedior'five-cents each, by addressing: theI Commissioner of;Patents, y

sheave,'a dog operable therewith, and an automatically operated means soperated by the movement' of said flexible member for operating saiddog, as and for the purpose set forth.

3. A hand operated car brake having a sheave with a spiral groove,means. for rotating said sheave, a ratchet formed integral with saidsheave, aA dog' operable therewith, and a manually and automaticallyoperated meansV for operatirig said dog; asand for thepurposeset forth.

Signed ai? New Yorl'city, in thecounty and StateV of` New Yorlr this28th day of Aug. 1914; J. A. NOBLE.

Witnesses: STERRITTE,

ARTHUR PHnLrs-Manm Washington, D. GJ"

